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By far the best possible pulley solution to gain an honest 10# of boost. CNC machined aircraft aluminum. Includes proper length supercharger belt, pulley tool kit.
REMEMBER THIS 10LB PULLEY ONLY MAKES 8LBS BOOST ON THE 2002-2003 TRUCK DUE TO THE BLOWER PULLEY BEING A 3.2 ON THE HARLEY TRUCK AND THE PULLEY ON THE LIGHTNING BLOWER IS A 2.9 MAKING 10 LBS ON THE LIGHTNING